低拱
- 网络depressed arch; drop arch
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低拱
depressed arch
depressed centre flat... ... depressed key 按键,按钮 depressed arch 低拱 depressed area n. 贫困地区,萧条区 ...
drop arch
材料科学专业词汇(D) ... Drop 落砂(铸疵) drop arch 低拱 Drop cutting 下穿切割 ...
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